Description:Material: Crafted from waterproof Oxford cloth, this sand bag base is designed to withstand various weather conditions, including winds, heavy rain, and sunlight, ensure long term performanceEnhanced Stability for Bird Deterrent: Specifically designed for bird deterrent, the 5 pound weighted design ensures that your deterrent device remains securely in place even in windy conditionsEasy Installation Process: Filling the bag with sand is a straightforward process that allows for quick and easy installation, making it convenient to set up whenever neededAdjustable Weight Customization: By controlling the amount of sand used to fill the bag, you can customize the weight to meet your specific requirements, providing flexibility for different applicationsCompact Size for Versatile Use: With dimensions of 30 cmx30 cmx5 cm/11.81 inchx11.81 inchx1.97 inch, this sand bag base is compact yet effective, making it suitable for a variety of outdoor settings where stability is requiredSpecification:Material: Oxford ClothSize Chart:30cmx30cmx5cm/11.81inchx11.81inchx1.97inchPackage Includes:1Sand Bag Boat BaseNote:Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.